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Trane TCP042F100AB Defrost Sensor Board
The defrost sensor control board will begin the defrost sequence in order to rid your unit of frost that can build up. The control board depends on a defrost sensor which is near the condenser somewhere, in order to determine when the defrost cycle should begin.
Easy warnings of an ineffective defrost board
- Defrost session will not initiate especially when there is a rather large amount of frost built up
- The whole system may stop working because of lack of airflow through the outdoor unit
- The main circuit board may issue an error signal produced when the defrost board is bad
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